Explore AMD EPYC 9J45 technical reviews, specifications and benchmark results, with practical context for server workloads and platform planning.
Last updated: 2026-10-20[Dual CPU] AMD EPYC 9J45 is a Server processor with 128 cores and 256 threads. Its base clock is 4.1 GHz. It records a PassMark CPU Mark of 201335 and a single-thread rating of 3488.
A summary based on specifications and results.
[Dual CPU] AMD EPYC 9J45 is a Server processor with 128 cores and 256 threads. Its base clock is 4.1 GHz. It records a PassMark CPU Mark of 201335 and a single-thread rating of 3488.
Specification context
The AMD EPYC 9J45 is a Server released in 2025. Recorded specifications include 128 cores and 256 threads, a 201,335 CPU Mark. Use these figures to understand its position, then compare the results with your software and the complete platform.
The 201,335 CPU Mark is a broad overall-performance measure, while the 3,488 single-thread result adds context for less-parallel work. Compare the nearby alternatives on this page and do not treat one score as a verdict for every application.
No confirmed socket is recorded for this processor. Verify the exact device or motherboard with the manufacturer before planning an upgrade.
Verify the system memory type, real power limits and cooling capacity.
FAQ
The main recorded details are 128 cores and 256 threads, a 201,335 CPU Mark. The tables on this page show socket, memory, cache and graphics data when available.
The product name or CPU Mark alone cannot answer that. Check single-thread performance, core count, the target graphics card, gaming resolution and results from the games you play.
A confirmed socket is not recorded here. Use the device model or manufacturer specifications to identify compatible hardware.
A structured TDP value is not currently available. Check the manufacturer specification and device power limits.
This guidance interprets recorded specifications and results; it does not claim hands-on device testing. Results can vary with motherboard, power, memory and cooling.
Multi-axis comparison
A direct comparison with nearby processors from the same brand and a similar core count.
A higher CPU Mark indicates stronger overall performance.
Measures speed in tasks that depend on one CPU thread.
Estimated as CPU Mark divided by TDP.
Bars are relative to the processors shown here, not a global ranking of every CPU.
Snapshot from 2026-10-20
| Brand | AMD |
|---|---|
| Category | Server |
| Release year | 2025 |
| Socket | — |
| Cores / threads | 128 / 256 |
| Base clock | 4.10 GHz |
| Max turbo | — |
| TDP | — |
| Integrated graphics | — |
| Memory type | — |
|---|---|
| Official speed | — |
| Maximum capacity | — |
No structured cache data.
